• Closed Blue pencil case with math equasions on it - side view with red zipper at top
  • Blue pencil case with math equasions on it - red inside and red zipper and it&
1 3

Cognitive Surplus

改变世界的方程式铅笔袋

$20.00
$20.00
结账时计算的运费。

使用改变世界的方程式铅笔袋改造您的学习用品！这款蓝色的铅笔袋配有拉链，展示了勾股定理和爱因斯坦相对论等历史方程式。非常适合存放您所有的数学工具和思考世界的奥秘。
    Closed Blue pencil case with math equasions on it - side view with red zipper at top
    Blue pencil case with math equasions on it - red inside and red zipper and it&